/****************************************************************************
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** Copyright (C) 2015 The Qt Company Ltd.
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** This file is part of the QtGui module of the Qt Toolkit.
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
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****************************************************************************/

#ifndef QDRAWUTIL_H
#define QDRAWUTIL_H

#include <QtCore/qnamespace.h>
#include <QtCore/qstring.h> // char*->QString conversion
#include <QtCore/qmargins.h>
#include <QtGui/qpixmap.h>
QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Gui)

class QPainter;
#ifndef QT3_SUPPORT
class QColorGroup;
#endif
class QPalette;
class QPoint;
class QColor;
class QBrush;
class QRect;

//
// Standard shade drawing
//

Q_GUI_EXPORT void qDrawShadeLine(QPainter *p, int x1, int y1, int x2, int y2,
                              const QPalette &pal, bool sunken = true,
                              int lineWidth = 1, int midLineWidth = 0);

Q_GUI_EXPORT void qDrawShadeLine(QPainter *p, const QPoint &p1, const QPoint &p2,
                              const QPalette &pal, bool sunken = true,
                              int lineWidth = 1, int midLineWidth = 0);

Q_GUI_EXPORT void qDrawShadeRect(QPainter *p, int x, int y, int w, int h,
                              const QPalette &pal, bool sunken = false,
                              int lineWidth = 1, int midLineWidth = 0,
                              const QBrush *fill = 0);

Q_GUI_EXPORT void qDrawShadeRect(QPainter *p, const QRect &r,
                              const QPalette &pal, bool sunken = false,
                              int lineWidth = 1, int midLineWidth = 0,
                              const QBrush *fill = 0);

Q_GUI_EXPORT void qDrawShadePanel(QPainter *p, int x, int y, int w, int h,
                               const QPalette &pal, bool sunken = false,
                               int lineWidth = 1, const QBrush *fill = 0);

Q_GUI_EXPORT void qDrawShadePanel(QPainter *p, const QRect &r,
                               const QPalette &pal, bool sunken = false,
                               int lineWidth = 1, const QBrush *fill = 0);

Q_GUI_EXPORT void qDrawWinButton(QPainter *p, int x, int y, int w, int h,
                              const QPalette &pal, bool sunken = false,
                              const QBrush *fill = 0);

Q_GUI_EXPORT void qDrawWinButton(QPainter *p, const QRect &r,
                              const QPalette &pal, bool sunken = false,
                              const QBrush *fill = 0);

Q_GUI_EXPORT void qDrawWinPanel(QPainter *p, int x, int y, int w, int h,
                              const QPalette &pal, bool sunken = false,
                             const QBrush *fill = 0);

Q_GUI_EXPORT void qDrawWinPanel(QPainter *p, const QRect &r,
                              const QPalette &pal, bool sunken = false,
                             const QBrush *fill = 0);

Q_GUI_EXPORT void qDrawPlainRect(QPainter *p, int x, int y, int w, int h, const QColor &,
                              int lineWidth = 1, const QBrush *fill = 0);

Q_GUI_EXPORT void qDrawPlainRect(QPainter *p, const QRect &r, const QColor &,
                              int lineWidth = 1, const QBrush *fill = 0);


#ifdef QT3_SUPPORT
//
// Use QStyle::itemRect(), QStyle::drawItem() and QStyle::drawArrow() instead.
//
Q_GUI_EXPORT QT3_SUPPORT QRect qItemRect(QPainter *p, Qt::GUIStyle gs, int x, int y, int w, int h,
                          int flags, bool enabled,
                          const QPixmap *pixmap, const QString& text, int len=-1);

Q_GUI_EXPORT QT3_SUPPORT void qDrawItem(QPainter *p, Qt::GUIStyle gs, int x, int y, int w, int h,
                         int flags, const QPalette &pal, bool enabled,
                         const QPixmap *pixmap, const QString& text,
                         int len=-1, const QColor* penColor = 0);

Q_GUI_EXPORT QT3_SUPPORT void qDrawArrow(QPainter *p, Qt::ArrowType type, Qt::GUIStyle style, bool down,
                          int x, int y, int w, int h,
                          const QPalette &pal, bool enabled);
#endif

struct QTileRules
{
    inline QTileRules(Qt::TileRule horizontalRule, Qt::TileRule verticalRule)
            : horizontal(horizontalRule), vertical(verticalRule) {}
    inline QTileRules(Qt::TileRule rule = Qt::StretchTile)
            : horizontal(rule), vertical(rule) {}
    Qt::TileRule horizontal;
    Qt::TileRule vertical;
};

#ifndef Q_QDOC
// For internal use only.
namespace QDrawBorderPixmap
{
    enum DrawingHint
    {
        OpaqueTopLeft = 0x0001,
        OpaqueTop = 0x0002,
        OpaqueTopRight = 0x0004,
        OpaqueLeft = 0x0008,
        OpaqueCenter = 0x0010,
        OpaqueRight = 0x0020,
        OpaqueBottomLeft = 0x0040,
        OpaqueBottom = 0x0080,
        OpaqueBottomRight = 0x0100,
        OpaqueCorners = OpaqueTopLeft | OpaqueTopRight | OpaqueBottomLeft | OpaqueBottomRight,
        OpaqueEdges = OpaqueTop | OpaqueLeft | OpaqueRight | OpaqueBottom,
        OpaqueFrame = OpaqueCorners | OpaqueEdges,
        OpaqueAll = OpaqueCenter | OpaqueFrame
    };

    Q_DECLARE_FLAGS(DrawingHints, DrawingHint)
}
#endif

Q_GUI_EXPORT void qDrawBorderPixmap(QPainter *painter,
                                    const QRect &targetRect,
                                    const QMargins &targetMargins,
                                    const QPixmap &pixmap,
                                    const QRect &sourceRect,
                                    const QMargins &sourceMargins,
                                    const QTileRules &rules = QTileRules()
#ifndef Q_QDOC
                                    , QDrawBorderPixmap::DrawingHints hints = 0
#endif
                                    );

inline void qDrawBorderPixmap(QPainter *painter,
                                           const QRect &target,
                                           const QMargins &margins,
                                           const QPixmap &pixmap)
{
    qDrawBorderPixmap(painter, target, margins, pixmap, pixmap.rect(), margins);
}

QT_END_NAMESPACE

QT_END_HEADER

#endif // QDRAWUTIL_H